export default {

	namespaced: true,

	state: () => ({

		cart: JSON.parse(uni.getStorageSync('cart') || '[]'),
	}),

	mutations: {
		addToCart(state, goods) {

			const findResult = state.cart.find((x) => x.goods_id === goods.goods_id)
			console.log(findResult);

			if (!findResult) {
				state.cart.push(goods)
			} else {
				findResult.goods_count++
			}

			this.commit('m_cart/saveToStorage')
			// console.log(state.cart);
		},
		saveToStorage(state) {
		uni.setStorageSync('cart', JSON.stringify(state.cart))
	},
	updateGoodsState(state, goods) {
	  const findResult = state.cart.find(x => x.goods_id === goods.goods_id)
	
	  if (findResult) {
	     findResult.goods_state = goods.goods_state
	    this.commit('m_cart/saveToStorage')
	  }
	},
	updateGoodsCount(state, goods) {
	 
	  const findResult = state.cart.find(x => x.goods_id === goods.goods_id)
	
	  if(findResult) {
	    findResult.goods_count = goods.goods_count
	    this.commit('m_cart/saveToStorage')
	  }
	},
	removeGoodsById(state, goods_id) {
	  state.cart = state.cart.filter(x => x.goods_id !== goods_id)
	  this.commit('m_cart/saveToStorage')
	},
	updateAllGoodsState(state, newState) {
	  state.cart.forEach(x => x.goods_state = newState)
	  this.commit('m_cart/saveToStorage')
	}
	},
	
	getters: {
		total(state) {
			// let c = 0
			// state.cart.forEach(x => c += x.goods_count)
			// return c
			
			  return state.cart.reduce((total, item) => total += item.goods_count ,0)
		},
		checkedCount(state) {
		  return state.cart.filter(x => x.goods_state).reduce((total, item) => total += item.goods_count, 0)
		},
		checkedGoodsAmount(state) {
		  return state.cart.filter(x => x.goods_state)
		                   .reduce((total, item) => total += item.goods_count * item.goods_price, 0)
		                   .toFixed(2)
		}
	},

}